1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 5. GET OTSVerificationAPI → pre-computed 6-check result from server 6. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x568c2afeb3069260a6d40d7a2af952115a0fc4a2a0e83bac64b9de273893c369. Chain 2 (Bitcoin): anchored in block 954004 (2026-06-16T21:01:04Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/322d3e49-4b3f-49e4-9049-dd1ce84cfdbe.json and https://artists.proofprofile.net/proofs/artist/322d3e49-4b3f-49e4-9049-dd1ce84cfdbe.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f41c0fc3064c71677c340f18d15c3ed7f5452a52bfb85f0d274a8ae5e25ed00. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/BXGOP1600004.
Preguicinha (Participação especial Bruninho & Davi) - Ao vivo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae908726ed4feeeccfd431f637319f8e0a5207fbd830034830ced73f346a7cd1. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/BXGOP1600013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d5b236c7d6f96069421d5120a105fa8b3e6c656880bc17b0d726e0528332da1. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/BXGOP1600017.
Flores de maio (Participação especial de Fabio Brazza)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba6c5628709dd6be7dc8a3fb0b53064b3e9891cfaf6eadefe91e61d873e47d71. Chain 2 (Bitcoin): anchored in block 957065 (2026-07-07T16:43:21Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/BX2521800009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc0efd4c58ac2cc7c2c31bc109f2ecef049227b0bac2faf590cd10b6dba2ff8c7. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/BRWMB1700423.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d5b236c7d6f96069421d5120a105fa8b3e6c656880bc17b0d726e0528332da1. Chain 2 (Bitcoin): anchored in block 957055 (2026-07-07T15:12:44Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/BXGOP1600017.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa94858c442b6dfddbc335727e9a6c2431b5273388ee86f36b2d198d022cb46e3. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/BRWMB1500257.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf318ec1683181176f8f55fcbd502e5980c12a2e3553f7bd69e9e0a2da983c2e8. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/BRWMB9805863.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ae1405933c0b7e139db8922b02d9f869a363f0182490661d2b484db9348cf3e. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-07T18:39:05Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/BRWMB9600400.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb85d53220f6348679d23fff722870f053c2f4fc0eedba53e39c84f30be9c22b9. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/BRWMB0400376.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x72491382333d76c63e0ca41ddcb3abe25f9970741d29243b3db8fa3f29c1427f. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-07T18:39:05Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/BRWMB9800130.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x363d1472a3f496d40783ed135505b28f85d77a24b1c07ee814c128259691f357. Chain 2 (Bitcoin): anchored in block 957043 (2026-07-07T13:52:39Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/BRWMB9705930.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8965c0e47cc8f72263912b1bfc0e2ae790007cba75f818f03820a1a9f4f14303. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/BRWMB1700061.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x294b83f13906496cfc83a359584711dd7b0978b2dca75ff06af6934c4668633d. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/BRWMB9705902.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x545f71570e2f31f8d9062de2b921d1872d4729f2fdb347a80109e05064d99660. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/BRWMB9901039.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3565714dbb8da2af7561d63806c390cb0e7e078fa360f3251595a9ab979e96ef. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/BRWMB1500165.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x854146302cbcd68fb6a0ec616661b687269f8cf4186d1d9e350301a7dd02d41c. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/BRWMB0300451.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e3d3a275c888e80bf9f598c63eb6b2dd1426a01c05e4f648e7d0780dc9f32b0. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/BRWMB0100488.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3bd55859f6101d9adeeeb339e9ae4d405d2061212a4a245ba36deea877164d4e. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/BRWMB0400526.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa56c69803e69522f0a4eace4a2d334ebf454dcf656371bc7a1e24cd426ed26ad. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/BRWMB1400473.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x66af1924c77022d38ce75791a11073abc6e6cb65089c58594f5ca8928b62e4b8. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/BRWMB9804416.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc09215e8b686704b2f8db926b0e582a86b58d516fbdd88cbe9f6cd2c1c2947d5. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/BRWMB9703637.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d185975e2938bbf84594176ebf59b87d154b1a4ac840e9dfea93d7a3ea73e5b. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/BRWMB9705941.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc3a0c3a377da05937d00df272dd23fe1b0aedb9b14348e9d1aeefd2f1bb9aa19. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/BRWMB9901519.